NCT04958109

Brief Summary

The goal of this study is to understand how exogenous kisspeptin affects metabolism by evaluating responses to an oral glucose tolerance test

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
16

participants targeted

Target at below P25 for phase_1

Timeline
Completed

Started Oct 2021

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 1, 2021

Completed
11 days until next milestone

First Posted

Study publicly available on registry

July 12, 2021

Completed
4 months until next milestone

Study Start

First participant enrolled

October 28, 2021

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 31, 2022

Completed
2.1 years until next milestone

Results Posted

Study results publicly available

December 12, 2024

Completed
Last Updated

March 6, 2026

Status Verified

November 1, 2024

Enrollment Period

1 year

First QC Date

July 1, 2021

Results QC Date

November 8, 2024

Last Update Submit

February 13, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Oral Glucose Sensitivity Index (Kisspeptin-Placebo)

    Change in Oral glucose Sensitivity Index between kisspeptin and placebo arms in oral glucose tolerance test

    3 hours

Study Arms (2)

Kisspeptin

EXPERIMENTAL

• Intravenous administration of kisspeptin 112-121 x 16 hours

Diagnostic Test: Oral Glucose Tolerance TestDrug: Kisspeptin

Placebo

PLACEBO COMPARATOR

• Intravenous administration of placebo x 16 hours

Diagnostic Test: Oral Glucose Tolerance TestDrug: Placebo

Interventions

Intravenous administration of kisspeptin 112-121 x 16 hours

Kisspeptin

Administration of a 75 gm oral glucose tolerance test

KisspeptinPlacebo

Intravenous administration of Placebo 16 hours

Placebo

Eligibility Criteria

Age18 Years - 40 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • History:
  • over the age of 18,
  • normal pubertal development
  • stable weight for previous three months,
  • normal body mass index (BMI between 18.5-25)
  • regular menstrual cycles
  • Physical examination:
  • systolic BP \< 140 mm Hg, diastolic \< 90 mm Hg
  • Laboratory studies: (per Massachusetts General Hospital reference ranges)
  • normal hemoglobin
  • hemoglobin A1C \< 6.5%
  • blood urea nitrogen, creatinine not elevated
  • aspartate aminotransferase, alanine aminotransferase \< 3x upper limit of normal

You may not qualify if:

  • active illicit drug use,
  • history of a medication reaction requiring emergency medical care,
  • difficulty with blood draws.
  • history of chronic disease, except well controlled thyroid disease,
  • recent use of prescription medications which interfere with metabolism or reproduction (recent = within 5 half-lives of the drug). Use of levothyroxine or seasonal allergy medications is acceptable,
  • history of diabetes in a first degree relative,
  • use of contraceptive pills, patches or vaginal rings within last 4 weeks.
  • hyperlipidemia by fasting lipid panel
  • positive serum pregnancy test (for all women)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Massachusetts General Hospital

Boston, Massachusetts, 02114, United States

Location

MeSH Terms

Conditions

Metabolic Diseases

Interventions

Glucose Tolerance TestKisspeptins

Condition Hierarchy (Ancestors)

Nutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

Blood Chemical AnalysisClinical Chemistry TestsClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisDiagnostic Techniques, EndocrineInvestigative TechniquesIntercellular Signaling Peptides and ProteinsPeptidesAmino Acids, Peptides, and ProteinsNeuropeptidesTumor Suppressor ProteinsNeoplasm ProteinsProteins

Limitations and Caveats

This was designed as a pilot study

Results Point of Contact

Title
Margaret Lippincott
Organization
Massachusetts General Hospital

Study Officials

  • Margaret Lippincott, MD

    Massachusetts General Hospital

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
OTHER
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Chief, Reproductive Endocrine Unit; Professor of Medicine, Harvard Medical School; Director, Harvard Reproductive Endocrine Sciences Center

Study Record Dates

First Submitted

July 1, 2021

First Posted

July 12, 2021

Study Start

October 28, 2021

Primary Completion

October 31, 2022

Study Completion

October 31, 2022

Last Updated

March 6, 2026

Results First Posted

December 12, 2024

Record last verified: 2024-11

Data Sharing

IPD Sharing
Will not share

Locations